Calculation

Property Type Description

Billing Period End Date

Date/Time Numeric

If the type of EOB is defined as DEFINE_DAY_OF_MONTH, then this property holds the defined day.

Billing Period Starts

Numeric

This is the number of Starts for the current billing period.

Billing Period Time: Min/Max

Date/Time Numeric

Displays the date and time that the minimum or maximum occurred during the current billing period. Applicable to Minimum or Maximum calculation type only.

Billing Period Type

Multi-State

This is an enumerated value determining what type of End-of-Billing period to use.

Billing Period Value

Numeric

This is the calculated value for the current billing period.

Calculation Constant

Numeric

This edited parameter is the Base Temperature for Degree Day calculations or it is the Conversion Factor for Cool Flow Rate and Heat Flow Rate calculations.

Calculation Type

Multi-State

This property is the type of calculation that is to be done. This enumerated type has the following options: Average, Cool Flow Rate, Heat Flow Rate, Maximum, Meter Totalization, Minimum, Peak for 15 Minute Interval, Peak for 30 Minute Interval, Peak for 5 Minute Interval, Peak for 60 Minute Interval, Total Cooling Degree Days, Total Heating Degree Days, Total Run Hours/Starts.

Current Value: Ref

Numeric

Displays the current value of the calculation referencer

Enable Delay Countdown

Numeric

If the Enable On Delay property has been edited (given a value other than zero), this property is a countdown counter showing the time left before the calculation is enabled.

Enable Last State

Binary

This stores the value of the enable referencer the last time it was evaluated for use. If the enable referencer can not be evaluated this value is used.

Enable On Delay

Numeric

For some items (such as a entering or leaving water temp) it takes a few minutes until the value comes into a valid range. The ON delay will wait an edited amount of time after the Enable Point transitions from OFF to ON before accumulating the value.

Enable Status

Binary

This is the value to which enable referencer is evaluated.

Enable: Ref

Referencer/ Binary

If this point is undefined, accumulations will happen continuously. If this point is defined and ON, the accumulation will take place; otherwise, if this point is defined and OFF, the accumulation will not take place. If the enable referencer fails to evaluate, the Enable Last State property value is used.

End of Billing Selection

Binary

This is a boolean value to select if End of Billing period logic is to be used.

Last Billing Period Starts

Numeric

This is the number of Starts for the last billing period.

Last Billing Period Time: Min/Max

Date/Time Numeric

Displays the date and time that the minimum or maximum occurred during the last billing period. Applicable to Minimum or Maximum calculation type only.

Last Billing Period Value

Numeric

This is the calculated value for the last billing period.

Object Identifier

Object ID

This is the object identifier property. It is the unique identifier for a given instance of a calculation object. It is only unique within the context of a given BCU.

Object Name

Character

This is the object name property. In calculation objects this will contain the name of the calculation object. It is a text string.

Object Type

Multi-State

This is the object type property. It is an enumeration that identifies a calculation object.

Property Reference

Numeric

This is the value of the property reference which is being used in the calculation. This also displays the referenced object and property whose value is used in all calculations.

Security Class

Numeric

This is the security class property. It is a word that is defined on a bitwise basis. Each bit defines a particular security class and is used to control operator access to each calculation object instance. This is only used by the Workstation, all BCU applications ignore it.

Temp 1: Ref

Numeric

This is the value of the analog input used as the temperature 1 (leaving) in heating or cooling flow rate calculations

Temp 2: Ref

Numeric

This is the value of analog input used as the temperature 2 (entering) in heating or cooling Flow rate calculations.

Todays Starts

Numeric

This is the number of Starts today.

Todays Time: Min/Max

Numeric

Displays the date and time that the minimum or maximum occurred during for the previous day. Applicable to Minimum or Maximum calculation type only

Todays Value

Numeric

This is today’s current calculated value.

Units

Multi-State

Enumerated value to designate the units of the calculation.

Update Tag

Numeric

This is the upload/download tag property. Its purpose is to keep the Workstation and BCU copies of the object instance in synchronization.

Yesterdays Starts

Numeric

This is the number of Starts yesterday.

Yesterdays Time: Min/Max

Numeric

Displays the date and time that the minimum or maximum occurred during for the previous day. Applicable to Minimum or Maximum calculation type only.

Yesterdays Value

Numeric

This is yesterday’s calculated value.